Chord NOTE vs Music Theory Intervals
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chord NOTE
This app helps songwriters find chords that match melodies and provides tools for creating chord progressions. It also includes a scale library and can display vocal pitch to aid in composition.
- Chord finding for melodies
- Chord Progression function
- Scale library
- Vocal pitch display
- Key finding
- iPad Split View/Slide Over support
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Chord NOTE is a Songwriter’s assistant tool. It assists in finding the right chords to match a melody or musical phrase. And it has great Chord Progression function and Scale library. Chord NOTE supports Slide Over and Split View on iPad, and provides the appropriate display and operation for iPhone and iPad. You wrote new melody came into your mind, but you could not apply some chords for your melody… At a time like this, you can get guides to find some chords that match your melody by Chord NOTE. If you have composed some songs already, you know almost melody and chord have some same notes. Because the main part of melody is made up of constituent notes of chord in most cases. In the same way, you’ll be able to find Key to match your melody by Chord NOTE. So Chord NOTE is very useful for finding the chord and key. If you record your singing melody, you can display the pitch of your voice. And you can sketch your songs by Chord Progression function. Chord Progression function will provide numerous features for you. Chord NOTE supports widening the imagination of your wings for real composer. Advanced Option : Chord NOTE works fine without this option. However, when you’ll buy this low price add-on, you can use more Chords and Scales. It will provide a complete set usually. You can read full function description at support page. http://therootage.com/iphone/chord-note-en/
Music Theory Intervals
Learn to identify musical intervals by ear or sight. This app offers various modes for practicing simple and compound intervals, with customizable settings for root notes, direction, and clefs. Save and print your quiz results for review.
- Recognize simple and compound intervals
- Audio and visual training modes
- Ear training mode
- Clef notation training
- Customizable interval playback
- Grade book for saved results
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Teachers, students and professional musicians: Recognize simple and compound intervals by sight and/or sound. Compare any incorrect answer to the correct answer. Includes a 'Grade Book' list of all saved results that you can print or send. • Simple Intervals included are major, minor, diminished, augmented 2nds, 3rds, 6ths, 7ths, and diminished, perfect, and augmented 4ths, 5ths, and octaves. • Compound Intervals are intervals larger than an octave. • Three modes: Audio and Visual, Audio Only (Ear Training), and Visual Only (Clef Notation Training). • Treble, Alto, Tenor, and Bass clefs. • Set how the interval is played; harmonically, melodically up, down, or randomly. • Set a random root change, or set the root yourself between each question. • Set the number of questions, or stop anytime and grade only the number answered. The Grade Book is filterable by name. Grades include the name, date and time the quiz was taken, all relevant settings (clef, number of questions, etc.), and score (percentage and letter grade).
Screenshots
Verdict
The clearest difference is rating: Music Theory Intervals at 4.0 against Chord NOTE's 3.0. Music Theory Intervals also leads on in-app purchases (none vs 1) and price ($1.99 vs $2.99). Chord NOTE's advantage is update cadence (every 2 months vs every 34 months) and iOS requirement (18.1 vs 26.0). On ratings volume, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Chord NOTE costs $2.99 and Music Theory Intervals $1.99 up front. Chord NOTE sells 1 one-off in-app purchase. Music Theory Intervals asks for nothing beyond the download.
Music Theory Intervals holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 5 respectively.
Chord NOTE ships an update every 2 months, Music Theory Intervals every 34 months. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.
| Parameter | Chord NOTE | Music Theory Intervals |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Rating | 3.0 (3 ratings) | 4.0 (5 ratings) — better |
| Positive reviews | 61.5% of reviews | — |
| Number of ratings | 3 | 5 — better |
| Update frequency | Every 2 months — better | Every 34 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 31 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Hidenori Matsuoka | Patrick Q. Kelly |
Customer experience
Chord NOTE
Music Theory Intervals
In-app purchases
Chord NOTE
- Advanced Option$1.99
Music Theory Intervals
No in-app purchases
Questions
Is Chord NOTE free?
Is Music Theory Intervals free?
Which has better reviews, Chord NOTE or Music Theory Intervals?
Do Chord NOTE or Music Theory Intervals have ads?
Which is updated more often, Chord NOTE or Music Theory Intervals?
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